HighVulnerability

CVE-2026-25083: GROWI OpenAI thread and message API endpoints lack authorization checks

Source: NVD(opens in a new tab)
Identifier: CVE-2026-25083
Published: March 16, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.3%

Summary

CVE-2026-25083 affects GROWI's OpenAI thread/message API endpoints, which do not perform authorization in v7.4.5 and earlier versions. A logged-in user who knows a shared AI assistant's identifier may view and/or tamper with another user's threads and messages. The weakness is classified as CWE-862 (Missing Authorization) and JPCERT/CC scored it CVSS-B 8.7 HIGH (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N).

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

EPSS: 0.3%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.
Disclosure date: March 16, 2026

Weaknesses and techniques

Weakness (CWE): CWE-862
Attack pattern (CAPEC): CAPEC-122

Classification

Attack type: Other
Attack sophistication: Trivial
AI component targeted: API
Impact: Confidentiality,
Integrity
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-25083

First tracked: March 16, 2026 at 12:07 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 80% (self-assessed)

Summary

Mitigation

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